The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Khomokhoana, P (3 members)
- Kile,E (1 member)
- Kirsch, A (1 member)
- Kluge, K (1 member)
- Kreber, C. (1 member)
- Krishnan, S (1 member)
- Kurz, L (1 member)
- Lafave, M (1 member)
- Lahm, S (2 members)
- Larsson Heidenblad, D (2 members)
- Law (7 members)
- Lawrence, J (4 members)
- Layne, J (2 members)
- Learning analytics (1 member)
- Lee-Post, A (1 member)
- Leisure and recreation studies (0 members)
- Lemieux, C (0 members)
- Lexier, R (2 members)
- Library and Information Science (1 member)
- Linder, C (1 member)
- Lindner, C (0 members)
- Linguistics (1 member)
- Literature (0 members)
- Loeffler, E (1 member)
- Lovin, L (1 member)
- Lundstrom, K (1 member)
- Lübcke, E (1 member)
- MacDonald, R (2 members)
- MacDougall, L (0 members)
- MacMillan, M (1 member)
- MacPherson, K R (1 member)
- Marsano, M (1 member)
- Mathematics (18 members)
- McAllister, J (1 member)
- McBrady, J (4 members)
- McCollum, B (1 member)
- McDonnell, J (1 member)
- McGowan, S (1 member)
- McLean, J (1 member)
- Mechanical Engineering (7 members)
- Meder, A M (1 member)
- Medicine (3 members)
- Mehaffey, R (1 member)
- Mental moves (1 member)
- Menzel, S (2 members)
- Meretsky, V J (1 member)
- Metzger, C (2 members)
- Meyer, J H F (1 member)
- Meyer J H F (0 members)
- Mickutė, J (1 member)
